Holder for spring harrow-teeth



(No Model.)

Arc. HENDRICKS. HOLDER FOR SPRING EAR ROW TEETH.

No. 488,107. Patented Oct. '7, 1890.

I E TOR: WITNESSES: NV N ATTORNEY.

UNITED TATES ATENT OFFICE.

ADAM C. HENDRICKS, OF MARTINSBURG, WEST VIRGINIA, ASSIGNOR OF ONEHALF TOELIZABETH E. CRANE, OF BALTIMORE, MARYLAND.

HOLDER FOR SPRING HARROW-TEETH.

SPECIFICATION forming part of Letters Patent N 0. 438,107, dated October7, 1890. Application filed February 24, 1890. Serial No. 341,408. (Nomodel.)

To all whom, it may concern.-

Be it known that I, ADAM 0. HENDRICKS, a citizen of the United States,residing at Martinsburg, in the county of Berkeley and State of WVestVirginia, have invented certain new andusefullmprovementsinHoldersforSpring Harrow-Teeth, of which thefollowing is a specification.

This invention relates to an improved holder or fastening forspring-teeth of harrows, and is illustrated in the accompanyingdrawings, in which- Figure 1 shows a spring-tooth held by the fastening,the latter being attached to a part of the barrow-frame. Fig. 2 is afront view of the holder, the spring-tooth here being shown. in section.Fig. 3 is a longitudinal cross-section. Fig. 4 is a view, separate, ofthe screw-threaded wedge-bar.

The letter A designates a spring-tooth of any Well-known form, such asare used on harrows for land.

The object of this invention is to provide a holder or fastening deviceby which harrowteeth may be secured and maybe readily adjusted so thatthe point of the tooth may take into the groundmore or less, as desired.

The holder comprises, essentially, a box B, and awedge-bar C, movable insaid box by means of a screw. The box has a base d, on which thebarrow-tooth is to rest, a top bar 6 and two sides f, connecting thebase and top bar. The top bar is provided with inclines g, one, two, ormore. The number is immaterial. The two ends of the box are eachprovided with a slot h. The wedge-bar O has a flat side 2', which is tobear on the harrowtooth, and a back provided with inclines g, whichcoact with the inclines on the top bar of the box. It will be seen,therefore, that this wedge-bar must have the same number of inclines asthe box-bar. The wedge-bar is provided with a screw-threaded end 70, anda nut Z turns on said end. The wedge-bar O rests loosely in the twoslots h, and is movable therein endwise. The harrow-tooth A has positionbetween the wedge-bar and the base of the box, and said tooth preferablyrests on the two beads or raised edges d of said base, as shown in Fig.3. The screw end of the wedge-bar passes through one slot and projectsbeyond one side of the box, and the nut Z tightens on the said screw andbears against the box-side. A washer 'm may also be used. By turning thenut Z the wedge-bar 0 will be drawn endwise, and the incline g of thisbar will draw against the incline g of the box, and thereby the fiatside i of said bar Will press or clamp the tooth A firmly.

This holder is simple, cheap, powerful, and very convenientto adjust.The construction of the box part may be varied from that here shown, andthe position or location of the box may be different. My inventiontherefore is not limited to the particular construction shown.

Having described my invention, I claim- 1. The combination of abarrow-tooth, a box through which the harrow-tooth passes and providedwith an incline, a movable wedgebar having an incline, and a screwdevice to move said bar.

2. A holder for harrow-teeth, consisting of a box having a base and atop bar provided with an incline, a wedge-bar having a fiat side whichconfronts said base and provided on the opposite side with an inclineand having a screw-threaded end, and a nut turning on said end.

3. In a holder for barrow-teeth, the combination of a box havinga base,a top bar provided with an incline and two sides connect ing the baseand the top bar and said sides being provided with slots, a wedge-barresting loosely in said slots and havinga flat side which confronts saidbase and provided on the opposite side with an incline g, and alsohaving a screw-threaded end, and a nutturning on said end.

In testimony whereof I afiix my signature in the presence of twowitnesses.

ADAM C. HENDRICKS.

VVi tn esses D. M. KILMER, EDWARD HORNER.

